Re: [PSES] Standards for labels

Doug Powell Mon, 05 May 2014 21:37:26 -0700

As already mentioned durability of ratings and warning labels is a main concern. ‎Alcohol rub is typical and n-hexane may be required in some standards like 60950-1 and 60601-1. Be careful, n-hexane is hazardous. Most IEC/EN standards will require that you also test with any cleaning agents you have recommended in the user documents such as soap and water.

In my experience a safety label needs to be controlled: label material, inks, adhesives and manufactured by an approved label shop or in-house label printing machines which are approved for the purpose. This may sound rather extreme, but I have personally witnessed several companies who simply make paper labels on a laser jet printer and call it good enough. There are some good reasons for this level of scrutiny.

Thanks, - doug

Douglas Powell
http://www.linkedin.com/in/dougp01

From: IBM Ken

Sent: Monday, May 5, 2014 9:16 PM

To: [email protected]

Reply To: IBM Ken

Subject: Re: [PSES] Standards for labels

For what it's worth, UL accepts UL 969 for labels on NRTL marked products but insists I do a Hexane label rub test (for permanence) before giving me a CB report...

-Ken

On Mon, May 5, 2014 at 8:58 PM, Nyffenegger, Dave <[email protected]> wrote:

Hi Folks,

The NRTLs I work with in the past have asked for technical details for labels when doing safety compliance certification but I’m not sure why. For example self-adhesive labels used for switches and indicators on control panels, caution/warning labels, etc. The EC Machinery and Low Voltage Directives call for indelible marking but I’ve not seen anything in EN 60950-1 or EN 60204-1 that references requirements for labels for example. I’ve seen UL listings on a lot of labels and label material. Are there specific requirements (other than indelible) or standards applicable to CE compliance for these types of labels?

Thanks

-Dave

David P. Nyffenegger, PMP, SM-IEEE
Product Development Manager

Bell and Howell
3791 South Alston Avenue

Durham, NC 27713

Phone: 919.767.6419
Web: www.bellhowell.net

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